This is too weird.  I'd come across references to Frazetta occasionally like everyone else.  I hadn't thought of his stuff in many years.  A couple of weeks ago I found the book "Legacy/Selected Paintings & Drawings by Frank Frazetta" at my library, possibly just days afterward.   
The book outlines his many other lesser known works as well.  Like, I have the LP of the Peter Sellers movie "After the Fox", and there's a cartoon on it of the various characters in the film...done by guess who!  Here I was looking at this thing off and on for years, and didn't even realize.
Though I'm not into fantasy art much, it's true, a lot can be learned from studying his stuff, particularly dramatic lighting and posing.